53444544745 has 16 divisors (see below), whose sum is σ = 64490437440. Its totient is φ = 42518234304.

The previous prime is 53444544689. The next prime is 53444544781. The reversal of 53444544745 is 54744544435.

It is a cyclic number.

It is not a de Polignac number, because 53444544745 - 2¹⁹ = 53444020457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699394 + ... + 772036.

It is an arithmetic number, because the mean of its divisors is an integer number (4030652340).

Almost surely, 2^53444544745 is an apocalyptic number.

It is an amenable number.

53444544745 is a deficient number, since it is larger than the sum of its proper divisors (11045892695).

53444544745 is a wasteful number, since it uses less digits than its factorization.

53444544745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73464.

The product of its digits is 10752000, while the sum is 49.

The spelling of 53444544745 in words is "fifty-three billion, four hundred forty-four million, five hundred forty-four thousand, seven hundred forty-five".